HUC Code | Watershed Name | Occurrence | Source |
17110005 | Upper Skagit | Current | NatureServe |
17110006 | Sauk | Historic | NatureServe |
17110008 | Stillaguamish | Current | NatureServe |
17110011 | Snohomish | Current | NatureServe |
17110017 | Skokomish | Current | NatureServe |
17110018 | Hood Canal | Historic | NatureServe |
17110019 | Puget Sound | Historic | NatureServe |